Loose-leaf booklet



May- 11 192e.

H. C. MILLER LOOSE- LEAF BOOKLET Filed Jan; 28. 1922 I N VEN TOR.

Patented May 11, 1926.

unirse i instan e traint orties.

HENRY c. MILLE-n, F MILWAUKEE, wisconsin.

LOOSE-LEAF BOOKLET.

Application led January 2S, 1922. Serial No. 532,373.

l) vention to improve the construction* and readiness of operation of loose leaf binders 4 of this type. i more definite object of this invention resides in the provision of means mounted within one binder head and operable on the ends of the flexible post therein to simultaneously move the posts in opposite directions to. effect the desired adjustment of the heads with respect to each other.

Another object of this invention resides in the provision of a means for adjusting the capacity of the binder, which is operated independently of the adjustment afforded by the movement of the flexible posts into one of the heads, in such manner that the additional adjusting means may be disposed within the other head to form substantially a magazine of connecting extension post sections which may be projected outwardly of the head as needed to increase the capacity of the binder,.or may be retracted into the head to reduce the capacity, and which are in terloclingly connected with the head by their disposition therein. f

This invention has'for a further object to provide plate means slidably mounted within one binder head and connected with the post ends disposed therein for simultaneously moving the post ends in opposite directions to extend or retract the posts.

A still further object of this invention resides in the provision of a readily detachable connection between the post ends and the "plate means whereby the binder heads may be readily moved apart by relieving the tension on the posts, disengaging the post ends from the plate means and then manually separating the binder heads.

W'ith the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by theV apshould it be required.

pendcd claims, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawing I have illustrated one complete example of the physical' embodiment of my invention constructed according tothe best mode I have so far devised for the practical application of the principles thereof, and in which:

Fligure 1 is a view of one binder head of a loose'leaf booklet embodying my invention,

the hinge cover thereof being in open position tomore clearly illustrate details of construction j Figure 2 is a view of a modified form of binder head, the head cover being broken away to illustrate the interior construction; Figure 3 isa transverse sectional view taken on the line 3 3 of Figure 2, and

Figure 4 is a fragmentary view of the binder head opposite to that illustrated in Referring now more particularly to the accompanying drawing, 5 and 6 designate vupper and lower binder heads,respectively,

between which is clamped a body of leaves 7 by means of flexible post-members 8, connected with the upper head 5, in the manner hereinafter described, and movable in the lower' head 6 at its end portions.` Pivoted to Vlugs 9 at the ends of the heads, are the upper and lower covers 10 and 11, respectively.

prises a series of pivotally connected link.

members lland anV end member 1d which is adapted forthreaded engagement by a screw threaded stud or tenon'l formed on one end of a plurality of extension post members 16. Each of these( extension post members comprises a pair of hingedly connected sections extensible through openings 17 in the inner wall of the upper 'binder head 5. One end of each extension section is provided with a socket 18 adapted to receive a closing screw or cap 19 or to provide for the addition of an lextra extension section, Also the hingedly connected sections may be unscrewed and one or more solidextension Ypost sections added to the flexible posts in lower binder Vhead to give additional capacity for leaves,

then the hingedly connected sections are screwed to the one or more solid extension post section inserted between.

To provide access to the interior of head for the manipulation of these sections, thc head comprises a body channel plate 2O which is normally closed by a hinged or removable cover 21, cover 2l being readily releasably locked in closed position by sultable latch means 22. In that form of my invention illustrated in Figures 3 and 4, the depth of the recess in head 5 is preferably less than the length of any one extension section link 16 so that when the extension link sections are laid laterally therein and the cover closed, any strain placed on the post will not lengthen the same from the upper binder head, thus providing a reservior for the extension sect-ions as will be readily apparent.

in Figure 1 the binder posts are preferably connected with the upper bindery head in any suitable manner and the ends thereof in the head 6 are in the form of socket members to receive removable screws or caps 23, which provide means for attaching the posts to means for extending or retracting the same. In this form of my invention a pair of plates 24 and 25 are slidably mounted in channel 2O and are connected with the op` posite ends of a lever 25', medially pivoted in the binder head 6, as at 26, by links 27 and 28, respectively. lith this construction it will be obvious that a 4movement of one plate in one direction will imparta movement to the other in an opposite direction.

Plates 24 and 25 are each provided with one or more Vrecesses 29 in which the heads -of caps 23 engage and are held by spring vmembers 30, when cover 21 is closed, Fixed to plate 24 is an internally threaded sleeve or bushing 3l in which is threaded a vshaft 32 having its outer portion journaled in a bearing 33 mounted near the adjacent end of the binder head and its eXtreme outer end squared, as at 34, for the reception of a key 'tated vtofmove plate 24 outwardly, moving plate 25 in Athe opposite direction through Vthe medium of links 27and 28 and lever 2b and consequently releasing the tension of posts '8. CoverV 24 is then opened by releasing latches 22 and caps 23 lifted from openings129, whenthe binder headsV can be moved .apart to fpermitready manipulation of the leaves.

if a is desired t@ increase 'are Capacity of the binder, additional sections may be added by unscrewing the extension sections and inserting either solid or additional pivot-- ally connected links. IVhen it is desired to vagain clamp the leaves between the binder heads, the ends of the post projectingv through openings 16 are moved laterally and caps 23 positioned in openings 29, cover 21 being then closed and screw 32 manipulated to draw plates 24 and 25 inwardly toward pivot 26 and consequently retract the posts.

Referring now more particularly to Figures 2 and 3, the lower binder head 6 lcom` prises a pair of opposed longitudinally channeled plates 36 in which the lower ends of the posts are extensible through elbow shaped guide members 37 registering with openings 38 in the uppermost plate. Elbows 37 afford a continuous smooth surface at the bend of the posts and t-hus'facilirate the extension or retraction thereof. Ihe end of one post is kpreferably detachably connected with carriage block 40 by pivot 4l, the end of the other to carriage block 89, the carriage block 39 being rotatably but non-slidably secured to the inner -end of a screw shaft 42 and carriage block 40 being made fast to one end of a channel plate 43 lslidably mounted in the lower binder head.

Screw shaft 42 is threaded'in an internally threaded sleeve or bushing -44 made fast to the end of plate 43 ropposite carriageblock 40 and has its outer end squared, as at 45, and in register with an opening (not shown) in the adjacent binder head endvfor the reception of a manipulatingkey (not shown). In this form of my invention,a rotation of shaft 42 ina clockwise direction will extend its inner end inwardly from sleeve `44, simultaneously moving plate-43 to the left, with reference to Figure 2, and the post attached to carriage block 39 to the right, thus drawing the posts into the lower binder head to clamp the lleaves between the heads. A reverse rotation of screw shaft 42 will extend the posts 8 from the lower binder head, as will be readily obvious, and permit the detachment of the leaves'?.

What I claim'as my inventionis:

l. A. loose leaf binder including'a `pair of binder heads, a llexiblepost connected with one head and-passed into the other lhead to eXtensibly lie therewithin, anfelongated plate member -siidablymounted in the lastinentioned head, saidplate being of sufficient width to be guided in said binder head by the side walls thereof, means connecting the portion of the postrinv` the last 4mentimied head with the plate whereby movement of the plate inone direction 'will retract the post and movement thereof in the opposite direction will extendfthe` post,

and means for moi'fiiiglthefplat'e infsaidlast mentioned head.

v2. A loose 1leaf binder including a pair of binder heads, a flexible post connected with oneheadand passed into the other head to extensibly lie therewithin, an elongated plate member slidably mounted in the last mentioned head, said plate being of suflicient width to be guided in said binder head by the side walls thereof, means readily detachably connecting the portion of the post in the last mentioned head with the plate whereby movement of the plate in one direction will retract the postk and movement thereof in the opposite direction will extend the post, and means for moving the plate in said last mentioned head.

3. A loose leaf binder including a pair of binder heads, a flexible post connected with one head and passed into the other head to extensibly lie therewithin, a plate member slidably .mounted in the last mentioned head, said plate having recesses therein, an enlargement o n the portion of the post in the last mentioned head for engagement in one of the plate recesses whereby movementof the plate in one direction will retract the post and movement thereof in the opposite direction will extend the post, and means for moving the plate in the last mentioned head.

4. A loose leaf binder including a pair of binder heads, a. flexible post connected with one head and passed into the other head to extensibly lie therewithin, a plate member slidably mounted in the last'mentioned head, Said plate having a recess therein, an enlargement readily detachably carried by the portion of the post in the last mentioned head for engagement in the plate recess whereby movement of the plate in one direction will retract the post and movement thereof in the opposite direction will extend the post, means detachably securing said post enlargement in said recess, and means for moving the plate in the last mentioned head.

5. A loose leaf binder including. a pair of binder heads, a flexible post connected with one head and passed into the other head to lie therewithin, an enlargement on the aortion of the posts in the last mentioned head, a cover for the last mentioned head, an elongated plate member in the last mentioned head and having a plurality of spaced recesses in which the post enlargementis engageable to make the post fast to said head, and a part carried by the cover for detachably securing the post enlargement in said recess.

6. A loose leaf binder including a pair of binder heads, flexible connecting posts connected with one head and passed into the yother head to extensibly lie therewithin, a

pair of elongated plates slidably mounted in the last mentioned head, said plates being of sufficient width to be guided in said binder head by the walls thereof, vmeans connecting the portion of the posts in the last mentioned head ywith the plates, and

means for simultaneously moving the plates` in opposite directions to retract and extend the posts.

7. A loose leaf binder including a pair of binder heads, flexible lconnecting posts connected with one head and passed into the other head to extensibly lie therewithin, a pair of'plates slidably mounted in the last mentioned head, means connecting the ends of the post-s in the'last mentioned head with the plates, a medially pivoted lever mounted in the last-mentioned.head between said plates, links having their inner ends pivotally connected with the ends of said lever and their outer ends pivoted to the plates whereby a movement of one plate in one direction will cause the other plate to move in a reverse direction, and means for moving oneof said'plates.

8. A loose leaf binder, including a pair of binder heads, flexible connecting posts connected with one binder head and passed into the other to extensibly lie therewithin, an enlarged head member on the end of each post disposed in the last-mentioned binder head, a pair of elongated plates having a free but substantially snug sliding fit in the last-mentioned binder head, said plates having a plurality of spaced recesses therein for permitting the ready adjustable connecting of the connecting posts therewith by inserting the enlarged head members therein, a lever centrally pivotally mounted in the lastmentioned binder head, a link member pivotally connecting each end of said lever with the adjacent plate, andmeans for moving one plate to cause coordinated movement of both plates and extend or retract the connecting posts.

9. A loose leaf binder including a pair of binder heads, posts connected with one head and adaptedI to be adjustably connected` with the other head, a pair of plates sildably mounted in the last-mentioned head, means for connecting the ends of the posts in the last-mentioned head with the plates, means forming a leverage connection between said plates whereby movement of one plate will cause a movement of the other in reverse direction, and said means tending to increase and decrease the effective lever arm length between the plates as they are moved to and from each other.

10. A loose leaf binder including a pair of binder heads, posts connected to one head and adapted to be adjustably connected with the other head, a pair of plates slidably mounted in the last said head, adjustable means for connecting the ends of the posts with said plates, a post fixed to the last said head and having movable thereon a pair of. oppositely extending arms, links connect- 4 Lasse-17 ing 'said .plates with said arms, means -or moving one ofsald plates, and lsaid arms and links tending to increase and decrease the eii'ective lever arm length afforded by the arm and link connection between the plates as they are moved toward and away from cach other.

ll. In a loose-leaf binder including a pair of binder heads adapted to clamp leaves therebetween and posts connected with one head and adapted to be adjustably connected with the other, members mounted inthe lastmentoned head and connectible with the portions of the post therein, and means for producing simultaneous movement of said members toward andr away from each other including a leverage connection between said members whereby the eiective lever arm length increases as the members move toward-each other to draw the posts into said last-mentioned head'and clamp the leaves between the heads and theeliective lever arm length decreases as the members separate to yrelieve the pressure on the leaves clamped between the binder heads.

l2. A loose leaf binder comprising a pair of binder heads adapted to clamp a body of leaves therebetween, posts carried by one head and adjustably connectible with the other head, a pair of plates slidably mounted in the last-mentioned head, means providing an engagement between the posts and plates to lock theheads against movement with respect to each other, means connecting the plates for coordinated movement in opposite directions, and said means including a member pivotally mounted in the last-mentioned head between the plates and link means pivotally connecting the inner end portion of the plates with said member at opposite sides of its pivot.

In testimony whereof I aitix my signature.

HENRY C. MILLER. Y 

